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Thermanit 25/09 TIG rod: Böhler Welding TIG rods in an R20 box, uncoppered
Thermanit, TIG rod, duplex

Thermanit 25/09 TIG rod

EN ISO classification14343-A W 25 9 4 N L
AWS classificationA5.9 / SFA-5.9 ER 2594
Shielding gasI1: 100 % argon
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Authorised distributorvoestalpine Böhler Welding
Courier shippingfrom the warehouse in Krotoszyn
Data sheetcomposition, properties, specifications
Wire selectionhelp from a welding engineer
Manufacturer data sheet
Application Specifications Manufacturer datasheet Fits Substitute Bought together
Application

What Thermanit 25/09 TIG rod is used for

Thermanit 25/09 is a high alloyed TIG rod for superduplex steels. It goes into tanks, pipelines and chemical or marine structures that need strength and corrosion resistance at the same time.

The rod suits grades such as 1.4410, 1.4467, 1.4468, 1.4507, 1.4515, 1.4517 and UNS S32750. Its deposit matches the superduplex grades.

  • Classification EN ISO: 14343-A W 25 9 4 N L
  • AWS classification: A5.9 / SFA-5.9 ER 2594
  • Shielding gas: I1
  • Diameters: 1.5 / 1.6 / 2.0 / 2.4 / 3.2 mm

Shield the root and keep the gas cover complete, oxidised zones in duplex are where pitting corrosion starts. Protect the root when you weld from one side, an oxidised underside spoils the corrosion resistance. Keep the rod inside the gas shield even after you lift it from the pool, a cold oxidised end will contaminate the next drop. Match the diameter to the plate thickness and the welding position, thinner rods are easier to control out of position.

Manufacturer datasheet

Chemical composition and properties from the manufacturer datasheet

Datasheet PDF

Typical weld metal values from the voestalpine Böhler Welding data sheet, issue 09/2023. The minimum or the range guaranteed by the maker is given in brackets. The figures depend on the heat treatment condition and the shielding gas stated in the row and do not replace testing the joint to your own WPS.

Welding data and approvals
Polaritydirect current, electrode negative (DC-)
Datasheet edition09/2023
Mechanical properties of the all-weld metal, typical values
Condition Yield strength Re, MPa Tensile strength Rm, MPa Elongation A, % Impact energy KV, J at 20 °C Impact energy KV, J at -40 °C
u 620 (min. 550) 760 (min. 700) 28 (min. 25) 190 (min. 120) 170 (min. 100)
  • u: untreated, as-welded, shielding gas Ar
Fits

For which materials and machines

Base materials
  • 1.4410
  • 1.4467
  • 1.4468
  • 1.4507
  • 1.4515
  • 1.4517
  • UNS S32750
Process and machines

TIG rod, works on any sound machine for this process: welders. Shielding gas: I1: 100 % argon.

Used welders New welders Ask us to help you choose
Technical substitute

Consumables with the same classification

Same material group, matching classification, a shared diameter and the same shielding gas. Confirm any substitute for your WPS in the documentation.

From the same group

Other consumables for the same material

For comparison before you buy. A technical substitute is listed above.

All: TIG welding rods